#region (c) 2014 THN Solutions LLC. - All rights reserved
/*
THN WEB SERVER

Copyright (c) 2014, THN Solutions LLC. ( www.ThnSolutions.com )
Author: Nguyễn, M. Hải                 ( www.Minh-Hai.com     )
All rights reserved.

This library is dual-licensed.
  + For use in commercial software, please obtain a commercial license from THN Solutions LLC.    

  + For use in free software, this library is licensed under GPL version 3. A summary of 
	GPLv3 is listed below. You should also find a copy of GPLv3 as file License_GPLv3.txt 
	included with the source-code files.

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 3 as published by
    the Free Software Foundation  of the License.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#endregion

#region Record of Change
//             							CHANGE HISTORY
// -------------------------------------------------------------------------------------
// |   DATE    | DEVELOPER  | DESCRIPTION                                              |
// -------------------------------------------------------------------------------------
// | 16-Nov-12 | HaiNM      | First creation.                                          |
// -------------------------------------------------------------------------------------
//
#endregion

#region Record of Audit
//             							REVIEW HISTORY
// -------------------------------------------------------------------------------------
// |   DATE    | REVIEWER   | NOTES                                                    |
// -------------------------------------------------------------------------------------
// -------------------------------------------------------------------------------------
//
#endregion

#region Using directives
using System;
using System.IO;

using Thn;
#endregion

namespace Thn.Web
{
    /// <summary>
    /// This class implements <see cref="IFileService"/> by returning a new <see cref="DirectFileResource"/> on every get.
    /// </summary>
#if DEBUG || TESTING
    public
#else
    internal
#endif
 class DirectFileService : IFileService
    {
        #region Fields
        #endregion

        #region Properties
        #endregion

        #region IFileService Members

        #region Get
        /// <summary>
        /// Retrieve the resource for a specific URI.
        /// </summary>
        /// <returns>Null if not found, otherwise the appropriate resource.</returns>
        IFileResource IFileService.Get(string uri)
        {
            IFileResource result = null;

            if (File.Exists(uri))
            {
                FileInfo fi = new FileInfo(uri);
                //DateTime t = fi.LastWriteTimeUtc;
                DateTime t = fi.LastWriteTime;
                result = new DirectFileResource()
                {
                    Uri = uri,
                    Size = fi.Length,
                    LastModified = new DateTime(t.Year, t.Month, t.Day, t.Hour, t.Minute, t.Second)
                };
            }
            #region Defensive tracing
            else
            {
                //not exist, return null
            }
            #endregion

            return result;
        }
        #endregion

        #endregion

        #region Constructors
        /// <summary>
        /// Default constructor.
        /// </summary>
        public DirectFileService()
        { }
        #endregion
    }
}
